Question

Although wood has a very high calorific value, we still discourage its use as a fuel. Explain.

Answer 1

Burning of wood has several disadvantages. These are as follows:

1. Burning of wood produces a lot of smoke which causes respiratory diseases.
2. The cutting down of trees to obtain as a wood fuel leads to deforestation which is very harmful to the environment.
3. Trees provide us many-useful substances. To obtain fuel wood, when trees are cut down, then all useful substances which can be obtained from trees are lost.